Medicine is the science and practice of the diagnosis, treatment, and prevention of disease. Medicine encompasses a variety of health care practices evolved to maintain and restore health by the prevention and treatment of illness. Contemporary medicine applies biomedical sciences, biomedical research, genetics, and medical technology to diagnose, treat, and prevent injury and disease, typically through pharmaceuticals or surgery, but also through therapies as diverse as psychotherapy, external splints and traction, medical devices, biologics, and ionizing radiation, amongst others.
He (Tiberius) was wont to mock at the arts of physicians, and at those who, after thirty years of age, needed counsel as to what was good or bad for their bodies.
Tacitus, Annals, Book VI, Chapter XLVI. Same told by Suetonius, Life of Tiberius, Chapter LXVIII.
How does your patient, doctor?
Not so sick, my lord,
As she is troubled with thick-coming fancies.
William Shakespeare, Macbeth (1605), Act V, scene 3, line 37.